OP before you decide what you will write about , start by answering the two highlighted Prompts. After you do that if you can honestly say not getting a tattoo because your girlfriend doesn’t like them is advocacy, then you are set for your application response. Same with the soup kitchen . Showing up every week and helping is admirable. You are certainly serving an unserved/underserved population but is it advocacy?
You have to start with a good look at what advocacy means to you. From the responses , obviously most of our definitions of advocacy are vastly different than yours. That’s why you will have to be very clear when answering this prompt by explaining what advocacy looks like to you.